Parallel build problem with introspection #106
Comments
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Full build log build.0.20170301091110.txt |
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Unfortunately can't reproduce this problem (built from scratch with |
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Hmm, can you maybe try whether this trivial changes help? --- a/data/cmake/GObjectIntrospectionMacros.cmake
+++ b/data/cmake/GObjectIntrospectionMacros.cmake
@@ -81,7 +81,7 @@ macro(gir_add_introspections introspections_girs)
--includedir=.
${CMAKE_CURRENT_BINARY_DIR}/${gir}
-o ${CMAKE_CURRENT_BINARY_DIR}/${_typelib}
- DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${gir}
+ DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${gir} ${gir}
OUTPUT ${_typelib}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
)The dependencies look correct, but maybe by using an absolute path, cmake only check whether the file exists and not whether the previous command did actually finish to run. |
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Reading https://samthursfield.wordpress.com/2015/11/21/cmake-dependencies-between-targets-and-files-and-custom-commands/#custom-commands-and-parallel-make it seems you need to depend both on the file and a custom_target |
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maybe something like: Unfortunately I have failed to reproduce it since that one time it happened :( |
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The code in question is used by a lot of people and projects, including things like e.g. Poppler, so I find it quite surprising that it fails at all, given the amount of testing it has received. |
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Please reopen this in case it happens again (but it's likely I will use Meson for AppStream soonish anyway) |
We got a build failure where it tried generating the typelib from the gir before the gir was finished:
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